function showovr(id) {
 var scrollTop	= 0;
 var q = id+"ovr";
 if (!scrollTop)
	scrollTop 	= window.scrollY;
 if (!scrollTop)
	scrollTop	= window.pageYOffset;
 if (!document.layers && !scrollTop && document.body)
	scrollTop	= document.body.scrollTop;
 if (document.getElementById && document.getElementById(id)) {
  if (document.getElementById(q)) {
   document.getElementById(q).style.left = 260;
   document.getElementById(q).style.top = scrollTop + 10;
   document.getElementById(q).style.visibility = "visible";
  }
 } else if (document.all) {
  if (document.all[q]) {
   document.all[q].style.left = 260;
   document.all[q].style.top = scrollTop + 20;
   document.all[q].style.visibility = "visible";
  }
 } else if (document.layers) {
  if (document.layers[q]) {
   document.layers[q].left = 255 - 4;
   document.layers[q].top = scrollTop - 4;
   document.layers[q].visibility = "visible";
  }
 }
}
function hideovr(id) {
 var q = id+"ovr";
 if (document.getElementById && document.getElementById(id)) {
  if (document.getElementById(q)) document.getElementById(q).style.visibility = "hidden";
 } else if (document.all) {
  if (document.all[q]) document.all[q].style.visibility = "hidden";
 } else if (document.layers) {
  if (document.layers[q]) document.layers[q].visibility = "hidden";
 }
}